CN209119832U - A kind of lithium battery protection circuit and control circuit of dust collector - Google Patents
A kind of lithium battery protection circuit and control circuit of dust collector Download PDFInfo
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- CN209119832U CN209119832U CN201821537853.9U CN201821537853U CN209119832U CN 209119832 U CN209119832 U CN 209119832U CN 201821537853 U CN201821537853 U CN 201821537853U CN 209119832 U CN209119832 U CN 209119832U
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Abstract
This is practical to disclose a kind of lithium battery protection circuit and control circuit of dust collector; including the first battery pack and the second battery pack, the first battery protection module, the second battery protection module and main control module; first battery protection module is electrically connected to prevent the first battery pack from overcharging or over-discharge with the first battery pack; second battery protection module is electrically connected to prevent the second battery pack overshoot or over-discharge with the second battery pack; first battery protection module is electrically connected with main control module; second battery protection module is connect with the anode of the second battery pack, and the second battery protection module includes amplifier.This is practical to be divided into two parts for battery pack, is protected respectively using two different battery protecting circuits, can be realized and protects to six sections or other battery packs that saves chip in the prior art and cannot once be protected.Entire battery protecting circuit structure is simple, and design cost is low, and such structure can apply in powerful equipment, such as in the equipment such as dust catcher.
Description
[technical field]
Originally practical to be related to battery protecting circuit technical field more particularly to a kind of lithium battery protection circuit and dust catcher control
Circuit.
[background technique]
A kind of widely used rechargeable battery when lithium battery, it have monomer operating voltage it is high, it is small in size, light-weight,
Energy density is high, service life cycle is long, can quick full charge and to allow discharge temp range wide etc. excellent within a short period of time
Point, the safety of lithium-ion electric battery supply set are the problem of people presently the most pay close attention to, so the protection to it is just very heavy
It wants.
In the biggish electrical equipment of some power consumptions, it usually needs multi-section lithium ion battery composition battery pack uses, in order to
Avoid these Li-ion batteries piles overcharge or over-discharge and damage battery pack, many lithium electricity privacy protection chips are emerged in large numbers in market,
There are five sections to protect chip, there are seven sections to protect chip, but without the protection chip of special six sections lithium battery, for needing six
The circuit for saving lithium battery, wherein a section lithium battery cannot be protected.
[summary of the invention]
This practical purpose aims to solve the problem that at least one above-mentioned problem, and electricity can be carried out to six section lithium batteries by providing one kind
The battery protecting circuit and control circuit of dust collector of road protection.
To realize the purpose, this is practical to disclose a kind of lithium battery protection circuit, including the first battery pack and the second battery pack,
First battery protection module, the second battery protection module and main control module, first battery protection module and first electricity
To prevent, first battery pack from overcharging the electrical connection of pond group or over-discharge, second battery protection module are electrically connected with the second battery pack
Connect to prevent that the second battery pack from overshooting or over-discharge, first battery protection module are electrically connected with the main control module, described the
Two battery protection modules are connect with the anode of second battery pack, and second battery protection module includes amplifier.
Further, first battery pack includes five batteries, and second battery pack includes a batteries.
Further, connect after non-inverting input terminal one electric resistance partial pressure of series connection of the amplifier with the anode of the second battery pack
It connects, the anode of second battery pack is grounded after being also connected with a resistance, and the inverting input terminal of the amplifier connects output end, together
When, output end contacts be grounded after a resistance and capacitor respectively.
Further, first battery protection module includes battery Subloop Protect chip and its peripheral circuit, and described
The anode of every section lithium battery of one battery pack has by bleeder circuit and filter circuit to be connect with battery Subloop Protect chip.
Further, the battery Subloop Protect chip is CW1051 chip, and the end CO of the CW1051 chip passes through the
It is connect after one metal-oxide-semiconductor with the first triode and the second triode, second triode is electrically connected with CW1051 chip.
Further, the main control module is single-chip microcontroller.
A kind of control circuit of dust collector, including lithium battery protection circuit described in above-mentioned any one.
Further, the main control module passes through connection switch key after a diode, one electricity of switch key series winding
It is connect after resistance with the base stage of a triode, the anode of emitter first the first batteries of battery pack of connection of triode, described three
The collector of pole pipe connects supply voltage.
Further, the operating of motor is connected to motor and controlled after one metal-oxide-semiconductor of the main control module connection.
Compared with prior art, originally practical to have following advantage:
The application discloses a kind of lithium battery protection circuit and control circuit of dust collector, and battery pack is divided into two parts, uses
Two different battery protecting circuits are protected respectively, and using five section Li battery protection ICs, additional operational amplifier is realized
The protection of six section lithium batteries, the CW1051 chip that the application uses can only protect five batteries, then put by adding an operation
It is sent in main control module and is handled to carry out the protection of the battery circuit beyond five batteries after big device progress shaping amplification.Entire electricity
Pond protects circuit structure simple, and design cost is low, and such structure can apply in powerful equipment, such as dust catcher etc.
In equipment.
This practical additional aspect and advantage will be set forth in part in the description, these will become from the following description
It obtains obviously, or is recognized by this practical practice.
[Detailed description of the invention]
This practical above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is this practical lithium battery protection circuit module diagram；
Fig. 2 is the battery pack end structure schematic diagram of this practical lithium battery protection circuit；
Fig. 3 is this practical control circuit of dust collector schematic diagram based on above-mentioned battery protecting circuit.
[specific embodiment]
It is further described with reference to the accompanying drawing with exemplary embodiment to originally practical, the examples of the embodiments are attached
It is shown in figure, in which the same or similar labels are throughly indicated same or similar element or there is same or like function
Element.The embodiments described below with reference to the accompanying drawings are exemplary, is only used for explaining that this is practical, and cannot be construed to pair
This practical limitation.In addition, if the detailed description of known technology for show this it is practical be characterized in it is unnecessary, then by it
It omits.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in this practical specification
Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or wirelessly coupling.It is used herein to arrange
Diction "and/or" includes one or more associated wholes for listing item or any cell and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term), there is meaning identical with the general understanding of those of ordinary skill in this practical fields.Should also
Understand, those terms such as defined in the general dictionary, it should be understood that have in the context of the prior art
The consistent meaning of meaning, and unless idealization or meaning too formal otherwise will not be used by specific definitions as here
To explain.
Originally practical to disclose a kind of lithium battery protection circuit, including the first battery pack 10 and the second battery pack 20, the first battery
Protective module 30, the second battery protection module 40 and main control module 50, first battery pack 10 include five batteries, and described the
Two battery packs 20 include a batteries.
First battery protection module 30 is electrically connected to prevent first battery pack 10 with first battery pack 10
It overcharges or over-discharge, specifically, five batteries of the first battery pack 10 are respectively battery T1, battery T2, battery T3, battery T4 and electricity
Pond T5, the first battery protection module include battery Subloop Protect chip U3 and its peripheral circuit, battery Subloop Protect chip U3's
Model CW1051, chip CW1051 include eight pins, respectively VDD, CO, GND, VC1, VC2, VC3, VC4 and VC5, and five
The anode of batteries is respectively by connecting the VC1-VC5 of CW1051 chip after bleeder circuit and filter circuit, in the application, battery
It is filtered after the anode connection resistance R39 of T1 by capacitor C21, and connects VC5 pin, after the anode connection resistance R38 of battery T2
It is filtered by capacitor C20, and connects VC4 pin, filtered after the anode connection resistance R37 of battery T3 by capacitor C19, and connect
VC3 pin, the anode of battery T4 is filtered after connecting resistance R36 by capacitor C18, and connects VC2 pin, and the anode of battery T1 is even
It is filtered after connecting resistance R35 by capacitor C17, and connects VC1 pin, GND pin knot, VDD pin connection capacitor C22 is followed by
Ground, while being connect after being also connected with resistance R40 with the anode of battery T1.In the application, the periphery electricity of battery Subloop Protect chip U3
Road is connect with CO pin, including resistance R41, resistance R42, metal-oxide-semiconductor Q13, triode Q11, triode Q12 and resistance R43, electricity
Hindering R44, resistance R45 and resistance R46, wherein the end CO is directly connect with resistance R42, and resistance R42 is grounded after connecting with resistance R41,
Meanwhile also being connect with the grid of metal-oxide-semiconductor Q13, the source electrode ground connection of metal-oxide-semiconductor Q13, with triode Q11's after drain electrode connection resistance R43
Base stage, the emitter of triode Q11 connects with the anode of battery T1, and the collector of triode Q11 connects after resistance R44 with three
The base stage of pole pipe Q12 connects, meanwhile, the one end resistance R45 is connect with the base stage of resistance R44 and triode Q12, other end ground connection,
The emitter of triode Q12 is grounded, and is connect after collector connection resistance R46 with 5V voltage, while the collector of triode Q12 is also
It is connect with main control module.
Second battery protection module 40 is electrically connected to prevent the second battery pack 20 overshoot or mistake with the second battery pack 20
It puts, the second battery pack 20 includes a batteries T6, and second battery protection module 40 is connect with the anode of the battery T6, institute
Stating the second battery protection module includes amplifier U4, and the amplifier U4 is responsible for the acquisition to the charge and discharge electric signal of battery T6, whole
Shape and processing, then data are conveyed to main control module 50 and do further judgement processing, so that effectively battery T6 is protected, it is main
Controlling inside module 50 further includes having the functional module of other function to control other component.Battery T6 in the application
Anode is separately connected resistance R31 and resistance R33, and resistance R33 is connect with the non-inverting input terminal of amplifier U4, the amplifier U4
Inverting input terminal connect output end, meanwhile, output end is grounded after distinguishing serial resistance R32 and capacitor C16.
Further, the main control module 50 uses single-chip microcontroller, in the present embodiment the model PMS132 core of single-chip microcontroller
Piece, PMS132 is that a band ADC is fairly static, using OTP as the CMOS 8-bit microprocessor of procedure basis.The application also public affairs
A kind of control circuit of dust collector is opened, specifically further includes following circuits including lithium battery protection circuit described in above-mentioned any one
Structure:
The P1.7 pin of single-chip microcontroller is connect with the collector of triode Q12, and the P0.3 mouth of PMS132 chip passes through connection electricity
Be grounded after holding C10, and P0.3 pin and 5V voltage pass through resistance R8 partial pressure after connect, triode Q12 is responsible for conveying five and economizes on electricity
The charging and discharging controlled state of the managing chip in pond, single-chip microcontroller are further processed control.After P0.4 pin passes through diode D4
It is connect with switch key K, the other end ground connection of switch key K, diode D4 is also connect with resistance R7 with switch key K, resistance
The base stage of R7 connecting triode Q3, while also being connect respectively with resistance R1 and resistance R2, transmitting of the resistance R1 also with triode Q3
Pole connection, resistance R2 connect with the collector of triode Q5, the collector connection voltage VCC of triode Q3, also with diode D5
Connection, diode D5 are connect with resistance R3, and resistance R3 is connect with filter capacitor C5 respectively, and is connect with the input terminal of chip Q4,
The output end of chip Q4 is connect after the filtering of capacitor C6 and capacitor C7 with 5V voltage.The ground terminal of chip Q4 is grounded.
The emitter of triode Q5 is grounded, and the base stage of triode Q5 passes through the filtering that is composed in parallel by capacitor C8 and resistance R4
After circuit, connect with divider resistance R5, and connect respectively with the cathode of diode D6 and diode D7, the anode of diode D6 with
The P0.5 pin of PMS132 chip connects.The anode of diode D7 is connect with resistance R6, resistance R6 also with circuit R30 and metal-oxide-semiconductor
The source electrode of Q7 connects, and resistance R30 is connect with the grid of metal-oxide-semiconductor Q7 with resistance R29, collector of the resistance R29 also with triode Q8
Connection, the emitter ground connection of triode Q8, the base stage of triode Q8 are connect with resistance R28, resistance R28 connection PMS132 chip
The connection of P2.4 pin.The drain electrode of metal-oxide-semiconductor Q7 connects diode D3 connection.
In the application, the vdd terminal of PMS132 chip connects 5V voltage, the end VSS ground connection, and vdd terminal connect electricity with the end VSS
Hold C9, P2.6 pin is separately connected filter capacitor C11 and divider resistance R13, and resistance R13 is separately connected resistance R12 and temperature-sensitive electricity
NTC is hindered, wherein resistance R12 connection 5V voltage, thermistor NTC ground connection.
Further, it is connect respectively with the collector of triode Q9 and resistance R25 in the P1.2 pin of PMS132 chip,
Resistance R25 is connect with 5V voltage, and the base stage of triode Q9 is connect with resistance R26 and resistance R27 respectively, resistance R26 and resistance R6,
Resistance R30 is connected with the source electrode of metal-oxide-semiconductor Q7, is grounded after resistance R27 is in parallel with capacitor C15, while the emitter of triode Q9
Ground connection.
Further, the main control module passes through connection switch key after a diode, one electricity of switch key series winding
It is connect after resistance with the base stage of a triode, the anode of emitter first the first batteries of battery pack of connection of triode, described three
The collector of pole pipe connects supply voltage.
Further, the main control module connects the operating for being connected to motor and controlling motor after a metal-oxide-semiconductor, in the application
Foregoing circuit is applied in dust catcher, and dust catcher operating needs motor control, the controling circuit structure of specific motor are as follows:
The P0.0 pin of PMS132 chip is connect with resistance R21, and resistance R21 connect with resistance R22 and connect with metal-oxide-semiconductor Q1 source electrode, electricity
Resistance R21 and resistance R2 is also connect with the grid of metal-oxide-semiconductor Q1, and the drain electrode of metal-oxide-semiconductor Q1 is connect with motor M1, the source electrode of metal-oxide-semiconductor and leakage
Capacitor C3 is connected between pole, the both ends of motor M1 are also connected with capacitor C1 and diode D1 respectively, and motor M1's is normal to protect
Operation.
The P0.1 pin of PMS132 chip is connect with resistance R23, and the grid of resistance R23 and resistance R24 and metal-oxide-semiconductor Q2 connect
It connects, resistance R24 is also connect with the source electrode of metal-oxide-semiconductor Q2, and the source electrode of metal-oxide-semiconductor Q2 connects resistance R19 and resistance R18, and resistance R19 also connects
The P0.1 pin of PMS132 is connect, while being also connected with capacitor C14, the other end of capacitor C14 is grounded to be filtered.Resistance R18 with
Resistance R17 connection, and it is separately connected the cathode of battery T6.Capacitor C4 is connected between the source electrode and drain electrode of metal-oxide-semiconductor Q2, metal-oxide-semiconductor
Drain electrode is also connected with motor M2, and motor M2 distinguishes shunt capacitance C2 and diode D2 to protect motor M2.Motor M1 and motor M2
The anode of battery M1, such motor M1 and motor M2 is separately connected to be supplied by the first battery pack 10 and the second battery pack 20
Electricity is worked with driving motor.By main control module 30 control metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2 on-off come control respectively motor M1 and
The unlatching and stopping of motor M2.
The whole working principle of the application is that chip CW1051 collects the state of a certain section lithium battery, can all be passed through
The 8th foot CO pin output of CW1051 has OFF signal, then the grade being made up of triode Q11, triode Q12 and metal-oxide-semiconductor Q13
Connection circuit is transported on the single-chip microcontroller of main control module 50, and single-chip microcontroller, which receives, makees further judgement processing after signal, then make into
The control of one step, such as received discharge signal, and single-chip microcontroller is then made the control for disconnecting power supply, led so that lithium battery be avoided to continue to use
Cause damage.In addition, the processing of a remaining section lithium battery and battery T6 are responsible for by operational amplifier U4, to this single battery
Signal be acquired, Shape correction obtains an analog voltage amount, then is conveyed to single-chip microcontroller and is for further processing, single-chip microcontroller root
The state that the batteries are judged according to the analog voltage size that the acquisition comes, then makes effective control.As judged the section
Battery using in electric discharge, when voltage value is lower than 2.7V, belongs to battery over-discharge use, single-chip microcontroller should make the place for disconnecting power supply always
Reason, in case battery continues to discharge and damage.
In the instructions provided here, although the description of a large amount of detail.It is to be appreciated, however, that this is practical
Embodiment can practice without these specific details.In some embodiments, it is not been shown in detail well known
Methods, structures and technologies, so as not to obscure the understanding of this specification.
Although having been illustrated with this practical some exemplary embodiment above, those skilled in the art will be managed
Solution can make a change these exemplary embodiments in the case where not departing from this practical principle or spirit, this is practical
Range is defined by the claims and their equivalents.
Claims (9)
1. a kind of lithium battery protection circuit, which is characterized in that including the first battery pack and the second battery pack, the first battery protection mould
Block, the second battery protection module and main control module, first battery protection module be electrically connected with first battery pack to prevent
Only first battery pack overcharges or over-discharge, second battery protection module are electrically connected to prevent the second electricity with the second battery pack
Pond group overshoot or over-discharge, first battery protection module are electrically connected with the main control module, second battery protection module
It is connect with the anode of second battery pack, second battery protection module includes amplifier.
2. lithium battery protection circuit according to claim 1, which is characterized in that first battery pack includes five economize on electricitys
Pond, second battery pack include a batteries.
3. lithium battery protection circuit described in -2 any one according to claim 1, which is characterized in that the same phase of the amplifier
It is connect after input terminal one electric resistance partial pressure of series connection with the anode of the second battery pack, the anode of second battery pack is also connected with a resistance
After be grounded, the inverting input terminal of the amplifier connects output end, meanwhile, output end contacts a resistance respectively and capacitor is followed by
Ground.
4. lithium battery protection circuit according to claim 3, which is characterized in that first battery protection module includes electricity
The anode of pond Subloop Protect chip and its peripheral circuit, every section lithium battery of first battery pack passes through bleeder circuit and filtering
Circuit has to be connect with battery Subloop Protect chip.
5. lithium battery protection circuit according to claim 4, which is characterized in that the battery Subloop Protect chip is
CW1051 chip, the end CO of the CW1051 chip after the first metal-oxide-semiconductor with the first triode and the second triode by connecting, institute
The second triode is stated to be electrically connected with CW1051 chip.
6. lithium battery protection circuit according to claim 1, which is characterized in that the main control module is single-chip microcontroller.
7. a kind of control circuit of dust collector, which is characterized in that protected including lithium battery described in the claims 1-6 any one
Protection circuit.
8. control circuit of dust collector according to claim 7, which is characterized in that after the main control module passes through a diode
Connection switch key, the switch key are contacted and connects after a resistance with the base stage of a triode, and the emitter of triode connects
The collector of the anode of first the first batteries of battery pack, the triode connects supply voltage.
9. control circuit of dust collector according to claim 7, which is characterized in that after the main control module connects a metal-oxide-semiconductor
It is connected to motor and controls the operating of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821537853.9U CN209119832U (en) | 2018-09-20 | 2018-09-20 | A kind of lithium battery protection circuit and control circuit of dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821537853.9U CN209119832U (en) | 2018-09-20 | 2018-09-20 | A kind of lithium battery protection circuit and control circuit of dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209119832U true CN209119832U (en) | 2019-07-16 |
Family
ID=67199015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821537853.9U Active CN209119832U (en) | 2018-09-20 | 2018-09-20 | A kind of lithium battery protection circuit and control circuit of dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209119832U (en) |
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2018
- 2018-09-20 CN CN201821537853.9U patent/CN209119832U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A lithium battery protection circuit and vacuum cleaner control circuit Effective date of registration: 20201020 Granted publication date: 20190716 Pledgee: Science and Technology Branch of Torch Development Zone of Zhongshan Rural Commercial Bank Co.,Ltd. Pledgor: Zhongshan Chunqiao Electronic Technology Co.,Ltd. Registration number: Y2020980006938 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220923 Granted publication date: 20190716 Pledgee: Science and Technology Branch of Torch Development Zone of Zhongshan Rural Commercial Bank Co.,Ltd. Pledgor: Zhongshan Chunqiao Electronic Technology Co.,Ltd. Registration number: Y2020980006938 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Lithium battery protection circuit and vacuum cleaner control circuit Effective date of registration: 20220927 Granted publication date: 20190716 Pledgee: Science and Technology Branch of Torch Development Zone of Zhongshan Rural Commercial Bank Co.,Ltd. Pledgor: Zhongshan Chunqiao Electronic Technology Co.,Ltd. Registration number: Y2022980016503 |
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